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1. US20090169859 - Article Comprising a Mesoporous Coating Having a Refractive Index Profile and Methods for Making Same

Office
United States of America
Application Number 12278133
Application Date 02.02.2007
Publication Number 20090169859
Publication Date 02.07.2009
Publication Kind A1
IPC
B32B 3/26
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
3Layered products essentially comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products essentially having particular features of form
26characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids
B05D 5/00
BPERFORMING OPERATIONS; TRANSPORTING
05SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
DPROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
5Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
Applicants Essilor International (Compagnie Generale d'Optique)
Inventors Biteau John
Boilot Jean-Pierre
Cadet Mamonjy
Cado Hervé
Gacoin Thierry
Matheron Muriel
Roisin Philippe
Vagharchakian Laurianne
Agents FULBRIGHT &; JAWORSKI L.L.P.
Priority Data 0650381 02.02.2006 FR
Title
(EN) Article Comprising a Mesoporous Coating Having a Refractive Index Profile and Methods for Making Same
Abstract
(EN)

The present invention relates to an article comprising a substrate having a main surface coated with a coating, part of which at least is mesoporous and has a refractive index profile with optical function, whose variation is imposed by the mesopore content and/or the filling ratio of the mesopores.

The profile may be such that the refractive index varies depending on the distance to a given axis, or such that the refractive index variation is monotone, decreasing along any axis which is perpendicular to the surface of the substrate underlying the mesoporous part of said coating and oriented away from the substrate.

The present invention also relates to methods for making said article, which differ depending on the technique from which the refractive index profile is created.

The invention is applicable to ophthalmic optics.